Method for painting metal powder on oblate AC capacitor core electrode

Abstract

The invention provides a method for painting metal powder on an oblate AC capacitor core electrode, relating to the electrode processing technology in automatic production of capacitors. The method comprises the following steps of: coating a plurality of oblate capacitor cores at intervals in an opposite adhesive face way by using two adhesive belts to manufacture a capacitor core belt; for each capacitor core, folding the front end of one plane section of the first adhesive belt backwards from the middle of the peripheral plane part at one side of the capacitor core so as to form a closed curved section to coat the entire periphery of the capacitor core, folding the tail end of the to backward forwards to form the rear end of the next plane section, and mutually attaching the second adhesive belt to the two plane sections of the first adhesive belt in a flat and straight way; placing the capacitor core belt in a flat and straight arrangement way, filling a rectangular technical frame, and exposing both ends of the capacitor core belt outwards respectively from the open side faces corresponding to the technical frame; respectively painting metal power on both ends of the capacitor core belt; taking the capacitor core belt out of the technical frame, tearing down the two adhesive belts, and respectively taking out the metal powder painted capacitor cores.

Description

technical field [0001] The invention relates to an electrode treatment process in the automatic production of capacitors. Background technique [0002] Flat round AC capacitors are widely used in motor and compressor circuits of dual-purpose electrical appliances. In the process of automatic production of oblate AC capacitors, it is necessary to spray metal powder on the exposed parts of the aluminum film electrodes at both ends of the rolled oblate capacitor core, and then weld the metal lead wires on the aluminum film electrodes sprayed with metal powder . In order to be able to spray metal powder in batches on the exposed parts of the aluminum film electrodes at both ends of the oblate capacitor core, the existing process method is: Step 1, wrap the tape around the oblate capacitor core to make a capacitor core tape . For details, please refer to figure 1 , use two adhesive tapes 2, 3 to wrap a plurality of oblate capacitor cores 1 at intervals in a manner that the ad...

AI Technical Summary

Problems solved by technology

[0003] But, it also has following shortcoming: 1, in above-mentioned step 1, please refer to figure 1 , a gap 4 may be left at the junction of each oblate capacitor core 1 and the plane sections 22, 32 before and after the two adhesive tapes 2, 3. When the metal powder is sprayed in step 3, a gap 4 will be formed. The strip-shaped metal powder remains on the arc surface of the outer circumference of the oblate capacitor core. In step 4, the aluminum film electrodes at both ends of the oblate capacitor core sprayed with metal powder need to be manually inspected one by one, and any problems are found. Those who need to manually scrape off the strip of metal powder on the arc surface of the outer circumference

2. In step 2 above, see figure 2 , there is a larger space 6 between the capacitor core bands of each plate and the inner wall of the rectangular process frame in the rectangular process frame, and there is also a larger gap 7 inside each capacitor core band; when step 3 sprays metal powder, spray to The metal powder in these spaces 6 and 7 are wasted in vain

Images